Can somebody provide some info about cultural influences on British society?

Hello everybody,

I have to write a project about cultural influences on the contemporary British society, and I really don't know what resources I can use, maybe somebody has a tip to give me. The purpose of the project is to prove how the contemporary British society's unity is influenced by the cultural diversity (eg: Indian, Chinese etc).
Any opinion in this matter is more than welcomed.

Thank you!!!
Mihaela